EarthRef.org Reference Database (ERR) -- Berkley & Jones 1982

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Berkley & Jones 1982

Berkley, J.L. and Jones, J.H. (1982). Primary igneous carbon in ureilites; petrological implications. Journal of Geophysical Research 87: A353-A364.

Antarctic ureilite ALHA78019 displays perfectly preserved primary textures in the carbonaceous matrix characterized by euhedral graphite blades intergrown with Fe-Ni metal and sulfide (diamonds are absent). This suggests that most graphite in ureilites originated by crystallization from a C-rich metallic phase. Two-stage redox history implied. Noble gases and rare earths are discussed.--Modified journal abstract.

Keywords
achondrites; Allan Hills Meteorites; alloys; carbon; composition;, crystal growth; Eh; electron probe data; geochemistry; graphite;, igneous activity; intergrowths; metals; meteorites; minerals;, native elements; noble gases; rare earths; silicates; stony, meteorites; textures; ureilite, 05B, Petrology of meteorites and tektites

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/

Publisher
American Geophysical Union
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